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Author Topic: 2018 charge tank question  (Read 472 times)

heroto

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2018 charge tank question
« on: December 03, 2017, 02:32:29 AM »

Considering getting a 2018 SR with the charge tank (J1772 adapter). I believe the 2018 6kw factory charge tank is a new item, so what worked or didn't with the priors may not apply.

My local dealer wasn't sure, so I ask the wise members of this forum:

Regarding charging with campground 50 amp outlet with the 2018 charge tank: how much tech is needed?

Do I need a charge station like this:
https://store.clippercreek.com/index.php?route=product/product&product_id=119

Or, is just a cord with a NEMA 14-50 prong at one end and a J1772 at the other OK?
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BrianTRice

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Re: 2018 charge tank question
« Reply #1 on: December 04, 2017, 07:30:54 AM »

A few points:
  • No one has gotten their hands on a 2018 charge tank, and its presumable significant difference from the current/earlier charge tank are enough that it's not clear what is known for sure except that a 6kW capacity seems to be the new spec.
  • That 24A cable is not rated for the at least 30A that the new Charge Tank will draw to achieve 6kW (over 7kW with the onboard).
  • The difference (as far as the vehicle is concerned) between a NEMA 14-50 plug at an RV park and a J1772 station is the J signal, which indicates presence of power and capacity. So the only question is whether the charger requires a J signal to operate, and I'm going to guess the answer is "no".
So, I would just get a NEMA 14-50 to J1772 cable from Hollywood Electrics or other. But make sure it's rated for 40A, not 24A.
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heroto

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Re: 2018 charge tank question
« Reply #2 on: December 10, 2017, 05:08:52 AM »

Thanks for the response.
Basic question here, I realize I must be missing something:
The 2018 charge tank is rated at 5.8kw according to Zero.
240v times 24A = 5.8kw.
If I have this right, then why would the 24amp clipper creek not be adequate to fully exploit the charge tank? Is the 5.8 number not the peak current draw? I ask because the clipper creek 24 amp is compact and light. Their next size up, 32amp is neither.
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Shadow

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Re: 2018 charge tank question
« Reply #3 on: December 10, 2017, 09:42:05 AM »

If I have this right, then why would the 24amp clipper creek not be adequate to fully exploit the charge tank? Is the 5.8 number not the peak current draw? I ask because the clipper creek 24 amp is compact and light. Their next size up, 32amp is neither.
Does any of us have access to a 24amp clipper creek unit to try?

*Postscript* I recall there were some mounted on the wall at the Clipper Creek HQ...
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heroto

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Re: 2018 charge tank question
« Reply #4 on: December 14, 2017, 09:21:13 AM »

I asked Zero. They were very responsive and truly helpful. 2018 charge tank can draw up to 6.5 kw. So the 5.8 kw clipper creek I listed would fall short of max charge rate by about 10%.  But if the online specs are correct it weighs less than half and is much more compact than the next size up in ClipperCreek or the competition. so still looks like an option to consider for travel.
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Doug S

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Re: 2018 charge tank question
« Reply #5 on: December 14, 2017, 09:03:16 PM »

I can't speak for the factory charge tank -- I suppose it's possible the charge tank needs some sort of handshaking -- but the SCv2 just uses a simple cable with a 14-50 plug on one end and a J1772 plug on the other. No need for heavy and bulky external devices.
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